Engine-valve.



R. WINTZER. ENGINE VALVE. APPLICATION FILED SEPT. 4

Patented Nov.22,1910,

THE NORRIS PETERS co.,wasumcrun, o. c.

arcane.

UNITED STATES PATENT OFFICE.

RUDOLF WINTZER, OF IVIILVIAUKEE, WISCONSIN, ASSIGNOR. TO POWER ANDMINING MACHINERY COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEWJERSEY.

ENGINE-VALVE.

Specification of Letters Patent,

Patented Nov. 22, 1910.

Application filed September 4, 1906. Serial No. 333,223.

To all whom it may concern:

Be it known that I, RUDoLr' WINTZER, a subject of the Emperor ofGermany, res1 ding at Milwaukee, in the county of Mllwaukee and State ofWisconsin, have invented certain new and useful Improvements in Engine-Valves, of which the following is a specification, reference being hadtherein to the accompanying drawing.

This invention relates to valves and their accompanying parts,especially to the exhaust valves of internal combustion engines.

The several objects of the invention, and the improved features ofconstruction and their mode of operation, will be understood from thedescription given below, in connection with the drawings.

Figure l is a longitudinal section of a valve and of a part of an enginecylinder sufficient to illustrate the manner of applying and employingmy improvements; Fig. 2 is a vertical section on the line 22, of Fig. 1;Fig. 3 is a section on the line 33, of Fig. 1 Fig. 4 is a section on theline 44, of Fig. 1; Fig. 5 is a view of the valve as a separate part.Fig. 6 is a longitudinal cross section of the same. Fig. 7 is a view ofthe tube forming the valve seat.

In the drawings I have shown a portion of the cylinder A of a gasengine. It has an exhaust duct B-B, which is controlled by a valveindicated as a whole by C. D is the bearing or support for the valve.The valve is seated against a tube or cylinder I, which is mounted inthe part B of the exhaust duct.

The valve 0 is hollow, being formed with an internal cylindrical part 0,and an outer cylindrical part c, and expanded at the end to form thevalve proper, the end wall being indicated by 0 Between the parts 0, cand 0 there is an inclosed water chamber.

The inner cylindrical part 0 is fitted snugly Water is admitted to thechamber 7 in the valve through the duct 8 and a coupling 12, which canbe connected to a hose or other movable supply pipe. The water escapesfrom the valve chamber through the passage at 13, which communicateswith the chamber through openings 14. The passage 13 has a coupler 13connected to a flexible or other movable exhaust duct. The outer end ofthe hearing or valve support D is expanded to form a flange or annulusE, which is bolted to the cylinder metal. In the chamber inside of thisflange there is arranged the coil spring F,which bears against thevalve, normally tending to hold it against its seat.

The valve is opened or withdrawn from its seat by the rod G passingcentrally through the bearing or support D, this rod at the outer endbeing connected at G to the valve gear. At its inner end it is securedby means of the disk or plate H to the end of the valve, the diskforming a tight closure for the central chamber in the valve, and alsofor the inner end of the bearing or support D.

The tube or cylinder I, which provides the seat for the valve, isextended to points at a considerable distance from the valve. It is heldin place in such way that it can be readily removed endwise, anysuitable retaining device being employed. As shown, it is prevented fromdisplacement by the pipe or coupling J, through which the exhaust gasesare taken. This is secured to the metal of the cylinder by bolts at K.The cylinder metal is provided with a cylindrical aperture or bore at L,into which the tube I is snugly fitted. At the outer end of the tube Ithere is a flange z' fitting in an annular cavity in the cylinder metal.In this flange or in the end of the metal of the tube there are formedsockets z" adapted to receive a suitable tool capable of ro tating thetube or withdrawing it from its seat when desired. At 0 the externalsurface of the tube or cylinder I is reduced, and this reduced part isfitted tightly to a rib or shoulder at P on the cylinder metal. Thevalve seat proper is at Q, this being the end face of the tube orcylinder I, and

adapted to receive tightly the end of the by releasing the bolts at Kand the nuts 7 employing a tube or bushing for the valve at R, afterwhich the valve can be drawn endwise in the direction of the exhaustduet. I obviate therefore the necessity of removmg any of the valve gearproper or disconnecting any of the ducts which supply or withdraw thecooling water for the valve, and also obviate the taking out of anyparts of the valve casing. One or all of these matters have beenincident to the parts that have heretofore been used in engines of thissort; much time has been consumed, special care has been required forreadjusting the gear, and re-packing the water connections and the likework.

. If it is necessary to grind the valve, all

r v that is required, with the construction which I have shown anddescribed, is to remove the exhaust pipe and the coupling, for thenaccess can be had to the tube or cylinder I which carriesthe valve seat,and to the valve itself, and the grinding can be accomlished in anypreferred way, as for instance y rotating the tube I with the seat. Thistube or bushing I is guided during the grinding manipulation in theguides at its ends. The ground faces on the valve seat ar'e'easilyaccessible for inspection, cleansing and the like. 7

One of the important matters incident to the present improvements isthat by having the parts constructed and related in the way described Ido away with the tubular part around the valve proper which has beenheretofore necessary and has been called the liner. It is of the natureof a cylinder or bushing inserted into the aperture in the cylindermetal on the side where the valve gear is situated, and has an externaldiameter somewhat greater than that of the valve. One form of such avalve mounting is illustrated in my earlier application, Serial No.318,495, filed May 24, 1906. By

seat, such as shown at I, I obviate entirely the necessity of this linertube on the opposite side of the cylinder.

What I claim is 1. In a gas engine, exhaust devices comprising anexhaust pipe, an exhaustvalve,

a sleeve or tube fitting within said pipe and providing a seat for thevalve, said 7 exhaust pipe having a removable section to permit of thewithdrawal of said sleeve from in front of the valve, independently ofthe valve. a v

2. In a gas engine, exhaust devices comprisingan exhaust pipe, anexhaust valve, a sleeve 'or tube fitting within said pipe and providinga seat for the valve, said exhaust pipe having a removable elbow topermit of the withdrawal of said sleeve from in front of the valve,independently of the valve.

sleeve or tube fitting within said pipe and providing a seat for thevalve and having an outside diameter greater than the outside diameterof the valve and said exhaust pipe having a removable section to permitof the withdrawal of said sleeve from in front of the valve,independently of the valve.

5. In a gas engine, exhaust devices comprising an exhaust pipe, anexhaust valve, a sleeve or tube fitting within said pipe and providing aseat for the valve, said exhaust pipe having a removable section adaptedto hold said sleeve in position or permit the withdrawal of said sleevefrom in front of the valve, independently of the valve.

6. In a valve mechanism for explosive e11- gines, the combination of thevalve, the means for supporting and guiding the valve, the exhaust pipe,a tube or ring providing a seat for the valve, and mounted in a sectionprising an exhaust pipe, an exhaust valve,

a sleeve or tube fitting within said pipe and rotatable therein andprovided with means for receiving a tool by which such rotation can beefiected and providing a seat for the valve, said exhaust pipe having aremovable section to permit of the withdrawal of said sleeve from infront of the valve, independently of the valve.

9. In an exhaust valve mechanism for gas engines, the combination withthe exhaust valve, of a sleeve or tube against which the valve abuts, asocket within which said sleeve or tube is rotatably mounted, and meansfor holding said sleeve or tube in position, or for releasing it,whereby it can be a machined fit with the interior cylindrical surfaceof the exhaust pipe at that end which is the seat for the valve, saidexhaust pipe having a removable section to permit of the withdrawal ofsaid sleeve from in front or" the valve, independently of the valve.

11. In a gas engine, exhaust devices comprising an exhaust pipe, anexhaust valve, a sleeve or tube providing a seat for the valve andhaving a machined cylindrical fit with the interior surface of theexhaust pipe at each of its ends, said exhaust pipe having a removablesection to permit of Withdrawal of said sleeve from in front of saidvalve, independently of the valve.

12. In a gas engine, exhaust devices comprising an exhaust pipe, anexhaust valve, a sleeve or tube fitting within the pipe and providing aseat for the valve, said exhaust pipe having a removable section whichis bolted to that part of the exhaust pipe within which the said sleeveis contained,

the removable section being adapted to hold the sleeve longitudinallv toposition againstthe blows of the valve and to permit of the withdrawalof said sleeve from in front of the valve, independently of the valve.

13. In a gas engine, exhaust devices comprising an exhaust pipe, anexhaust valve, a sleeve or tube fitting within said pipe and providing aseat for the valve, the exhaust pipe having a bend next beyond the saidsleeve or tube, said bent portion of the pipe being a removable sectionadapted to permit of the withdrawal of the sleeve from in front of thevalve, independently of the valve along its longitudinal axis withoutinterference with the more remote parts of the RUDOLF WINTZER. WitnessesL. F. SNYDER, F. G. BECKER.

